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sdas [7]
3 years ago
10

Find the probability of rolling a sum of two dice that is a 7 or a 12. Round answer to 4 decimal places

Mathematics
1 answer:
cricket20 [7]3 years ago
3 0

Answer:

The probability is 0.1944

Step-by-step explanation:

Since we are rolling two dice, the number of possible results is 36

for us to get a sum of seven, these are the possible results;

1 and 6

6 and 1

2 and 5

5 and 2

3 and 4

4 and 3

The probability of rolling a sum of 7 is 6/36

For a sum of 12, we only have one possible result and that is 6,6

So the probability here is 1/36

If we have or in probability, we add up the individual probabilities

So, our probability here will be;

1/36 + 6/36

= 7/36 = 0.1944

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Which of the following describes a similarity between a solid and a gas
lyudmila [28]

Answer:

  • they are both states of matter
  • they are both made up of atoms, molecules and ions
  • they both have volume
4 0
3 years ago
Which sequence isn’t a geometric progression?
AVprozaik [17]

Answer: 3, 6, 9, 12

Step-by-step explanation:

A geometric progression has a common ratio.

2,6, 18 and 54 has a common ratio of 3. When you multiply the first number by 3, you get the second number and the same thing applies to the third number.

1, 5, 25 and 125 has a common ratio of 5. When you multiply the first number by 5, you get the second number and the same thing applies to the third number.

4, 8, 16 and 32 has a common ratio of 2. When you multiply the first number by 2, you get the second number and the same thing applies to the third number.

3, 6, 9 and 12 is an arithmetic progression as 3 is added to each number

4 0
3 years ago
Can you fill in the missing words?
bulgar [2K]

The inverse functions of sine, cos and tan functions are csc, sec and cot respectively.

<u>Step-by-step explanation:</u>

The reciprocals of sine, cos and tan functions are csc, sec and cot functions. The reciprocal of cosine function is secant, (sec)  sec θ = $\frac{1}{cos \theta}

The inverse or reciprocal function is cosecant (csc), $ csc \theta = \frac{1}{sin\theta}

The inverse tangent function is cotangent (cot) , expressed in two ways: $ cot\theta = \frac{1}{tan\theta}   or $ cot\theta = \frac{cos\theta}{sin \theta}

So $ tan\theta = \frac{sin \theta}{cos \theta} then its reciprocal or inverse is termed as cot θ.

6 0
3 years ago
A rectangular patio has a perimeter of 44 feet. If the length of the patio is 5 feet less than twice the​ width, find the dimens
valentinak56 [21]
ANSWER: L=13; W=9
--Please read this explanation and this will be much easier for you, it took time to type..

Set up variables first. I will lead through how to get the answer.

First get variables. So, what is Perimeter? Perimeter is like so:

P = 2L + 2W = 44ft
Now instead of using P, we'll continue with

2L + 2W = 44 because this can be used to help answer the question better than P.

"Length of the patio is 5 ft less than twice the width"

So it says "length of the patio", so we put

L =

"5 ft less than twice the width"

L = 2W - 5

Now we know what L is, and we can plug this in to our first equation!

2L + 2W = 44
L = 2W - 5

Multiply by 2...
2L = 4W - 10

Plug in...
4W - 10 (2L see?) + 2W = 44

Rearrange...
4W + 2W - 10 = 44

And solve...
=6W - 10 = 44
=6W = 44 + 10
=6W = 54
=6W/6 = 54/6
=W = 9

Now we have W. Plug this into our other equation.

L = 2W - 5
L = 2*9 - 5
L = 18 - 5
L = 13

The length of the patio is 13 ft and the width of the patio is 9 ft.
7 0
3 years ago
9,11,13,15,17,19 can someone help
scZoUnD [109]
Hey! you would first for 9 its a one step equation so you would divide the number without the variable(constant) by both sides you would get and answer by having the variable on one side of the equation sign and you have your answer. since it was multiplying you had to divide to cancel out the number next to the variable . If you need more help i recommend PhotoMath because it shows you how to do the problems step by step and shows you the answer! Thanks for asking for help 
5 0
3 years ago
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